What is your Fermi overclock?

[jebo_4jc]

My Gigabyte and PNY GTX470s are both at 1478mhz at 1.0v

I'm getting about 13,500 ppd from them

I also have an EVGA GTX460 768mb that is at 1700mhz at 1.05v. It's getting around the same 13,500 ppd.

What are your fermi cards overclocked to? Are my results ok?

 

[Jon855]

Core or shaders?

Shaders give you more boost to the PPD - that's probably why you're not seeing the difference.

Holy batman I'm an idiot - these are the shader clocks...

 

[musky]

My 460 was doing 1780 shaders on the max valtage Afterburner would let me set it. It was almost stable at 1800, but not quite. Virtually no EUEs at 1780.

 

[Tobit]

My 460 was doing 1780 shaders on the max valtage Afterburner would let me set it. It was almost stable at 1800, but not quite. Virtually no EUEs at 1780.

Good to know *writes it down*.

 

[APOLLO]

My 460 was doing 1780 shaders on the max valtage Afterburner would let me set it. It was almost stable at 1800, but not quite. Virtually no EUEs at 1780.

What PPD were you getting with those clocks?

 

[Vaulter98c]

1504 mhz on my 470, getting 14,530 PPD, Fan 75% (VERY quiet), Temps 53-54* C

 

[jebo_4jc]

1504 mhz on my 470, getting 14,530 PPD, Fan 75% (VERY quiet), Temps 53-54* C

Did you tweak volts to get there?
Posted via [H] Mobile Device

 

[musky]

What PPD were you getting with those clocks?

14.2K to 14.5K with advmethods. The problem was, I lost 12K on bigadv doing it. If you have a slower system with a PCI-e slot, these cards are great. Once you get over something like a quad I7, they just aren't worth running.

 

[LOCO LAPTOP]

whats the memory clock on the 460s?

 

[APOLLO]

14.2K to 14.5K with advmethods. The problem was, I lost 12K on bigadv doing it. If you have a slower system with a PCI-e slot, these cards are great. Once you get over something like a quad I7, they just aren't worth running.

Yeah, quad-core i7s seem to be the limit to run -bigadv in conjunction with any GPU. 12 threads and more is hard to balance with -bigadv. Regular SMP is still up in the air I think, probably depending on specific units. If there's a benefit running GPU with regular SMP, it might still be wroth having a card installed for those days when there simply is no -bigadv to be had.

Another thing to note is the -advmethods WUs consume a lot more CPU cycles. You could try to run regular GPU WUs, but then the PPD is lower, so it looks like a lose/lose proposition. It seems a difficult victory is to be had combining both, and since PG looks down on marrying the two as unfavorable for the science, perhaps it's best to just run them separate.

 

[musky]

Another thing to note is the -advmethods WUs consume a lot more CPU cycles. You could try to run regular GPU WUs, but then the PPD is lower, so it looks like a lose/lose proposition. It seems a difficult victory is to be had combining both, and since PG looks down on marrying the two as unfavorable for the science, perhaps it's best to just run them separate.

With no admethods flag, I got 11K with the card and lost 10K on the bigadv, so that is even worse. I screwed around with this all last weekend with various -smp and cpu affinity/priority settings, and could not come up with an acceptable solution. Therefore, my I7 970 now has a 6600GT in it...